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RISGeneric Modeling and Control of an Open Circuit Piston Pump—Part I: Theoretical Model and Analysis
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Since variabledisplacement opencircuits piston pumps are equipped with diverse compensators or controllers, many different modeling approaches and representations have been developed in the previous research. In the industry, ...
Generic Modeling and Control of an Open Circuit Piston Pump—Part II: Control Strategies and Designs
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Hydromechanical compensators are often integrated with pistontype pumps to produce various control behavior, for example, pressure, loadsensing, power, or torque control. Various hydromechanical mechanisms (e.g., spring ...
Novel Piston Pressure Carryover for Dynamic Analysis and Designs of the Axial Piston Pump
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The timing definition of valve plates is one of the most complex topics in the piston pump designs because it affects many pump characteristics (such as efficiency, swashplate stroking, stabilities, noise, etc.). In the ...
The Analysis of Cavitation Problems in the Axial Piston Pump
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper discusses and analyzes the control volume of a piston bore constrained by the valve plate in axial piston pumps. The vacuum within the piston bore caused by the rise volume needs ...
Robust Reliability Based Optimal Design of H∠Control of Parametric Uncertain Systems
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An efficient nonprobabilistic robust reliability method for H∠robust controller design of parametric uncertain systems is presented by describing the uncertain parameters as interval variables. Design optimization of ...
Numerical Modeling Evaluation of Drilling Mud Loss Risk for a HDD Borehole in a Low-Strength Competent Bedrock
Publisher: American Society of Civil Engineers
Abstract: Horizontal directional drilling (HDD) plays an important role in pipeline construction. Drilling mud loss, or the maximum allowable drilling mud pressure, in soil and sand layers during HDD has been continuously studied ...
Dr. Y. C. Fung's Contributions to Biomechanics, Bioengineering, and Humanity: Warmest Celebration for a Magnificent Centenarian
Publisher: American Society of Mechanical Engineers (ASME)
Abstract: Professor Y. C. Fung has made superb contributions to science, engineering, and humanity through his research and its applications, as well as his words and deeds. By setting the highest standards of rigor and excellence, ...
Improving the Volumetric Efficiency of the Axial Piston Pump
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The volumetric efficiency is one of the most important aspects of system performance in the design of axial piston pumps. From the standpoint of engineering practices, the geometric complexities ...
The Phase Behaviors of Confined Shale Fluids Considering Adsorption Effect
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The molecular adsorption in nano-scale shale pores results in the reduction of effective pore volume and further strengthens the confinement effect. This study aims at examining the adsorption effect coupled with confinement ...
Molecular Mechanisms of Cell Protection Against Injury—The Foundation of Cell Protective Engineering
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Cells can launch self-protective mechanisms against injury, induced by ischemia, mechanical impact, toxins, radiation, or microorganisms (viruses, bacteria, and fungi), and can also recruit other cells to assist in the ...